Petrographic and geochemical characteristics of Cretaceous formations of Nkara region and surrounding area (Kwilu province, DRC)
Petrographic and geochemical characteristics of Cretaceous formations of Nkara region and surrounding area (Kwilu province, DRC)
Author(s): Djonive Munene ASIDI, Thomas Kanika MAYENA, Hervé Kasongo MAKINISHI, Bob Mayemba KISAKA, Emmanuel Kalemba NGUNGI, Grace Tshimanga KAMBA, Benny Buetham MBIDIKA, Blaise Kalunga MUKUWA, Raphael Matamba JIBIKILA, Rossy Masuama NSIALASubject(s): Geography, Regional studies, Physical Geopgraphy, Applied Geography
Published by: UNIVERSITATEA »ȘTEFAN CEL MARE« SUCEAVA
Keywords: Petrography; Geochemistry; Lithofacies; Cretaceous formations; Paleoenvironmental conditions of deposition;
Summary/Abstract: Geological investigations in the Nkara region of Kwilu Province, DR Congo, have identified seven lithofacies: pudding, argillite, quartz arenite, feldspathic arenite, greywackes, micaceous arenite, and soft finegrained quartz arenite. This study presents the petrographic and geochemical compositions and paleo-environmental conditions for the first time. Chemical analyses show slight variations in SiO2, Al2O3, and Fe2O3, linked to mineral composition. The quartz grains indicate extensive transport under strong hydrodynamic conditions, and iron oxides suggest deposition in an oxidizing environment, highlighting the need for further geological research in the area.
Journal: GEOREVIEW
- Issue Year: 34/2024
- Issue No: 1
- Page Range: 123-139
- Page Count: 17
- Language: English
